Extensive knowledge base of medical information on symptoms, diagnosis, and misdiagnosis of more than 10,000 medical conditions. Research causes of your symptoms or research ...

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Information about how depression is diagnosed, including the official DSM-IV diagnostic criteria, the signs and symptoms to look for and the most common types of depression ...

Usually, doctors can tell whether a person has a heart or blood vessel disorder on the basis of the medical history and the physical examination.

Symptoms Diagnosis provides free medical condition symptom, illness symptom, and disease symptom information online.